# Convert lattitude/longitude to micro degrees

Hi,

Does anyone know how to convert a lat/lon of  say (40, -73,  New York City) to microdegrees? I don't even know what a microdegree is, to be honest. Any help? I'm assuming there's some simple formula?

Thanks
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Commented:
It sounds like converting from minutes-seconds to degree.
i.e: you have 45 degree and 12' (minutes) 50" (seconds) and you should convert it to the 45.213889 degree.

For example of such type of convertion check this URL: http://www.fcc.gov/mb/audio/bickel/DDDMMSS-decimal.html
or better this one with better description:
http://www.anycalculator.com/decimaltodegree.htm
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Author Commented:
Hmm I already have it in decimal form, but I need to convert it to 'microdegrees'. It aooears that these microdegrees are rather large integers, so a lat of 40.5 for example would be something like 36346345 microdegrees. Yeah, I can't find any info on how to convert from this form!

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Commented:
The prefix "micro" means one millionth. One microdegree is one millionth of one degree. One degree of latitude (at the equator) = 1/360 of the circumference of the planet. The circumference of the planet at the equator is about 25000 miles, so 1 degree is about 69.4 miles (or 69.4 miles * 5280 feet / mile = 366,667 feet). One microdegree of latitude at the earth's equator is about (366,667 feet / 1,000,000 =) 0.37 feet.

I'm unaware of any other meaning of "microdegree".
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Commented:
Further to my last post:

To convert one amount in degreesl (say 42) to its equivalent in microdegrees, multiply by 1,000,000.
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Commented:
Just multiply the Latitude and Longitude by 1 million
Point p = new Point((int) (lat * 1000000), (int) (lon * 1000000));
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